Sheet-metal radiator section



Aug'. 27, 1929. G. R'. TELLANDER SHEET ETAL RADIATOR SECTION Fiied Nov.19, 192e Pfff Patented Aug. 27, 1929.

UNITED STATES GUNNAR RIGI-IARD TELLAND'ER, OF GOTTENBORG, SWEDEN.

SHEET-METAL RADIATOR SECTION.

Application filed November 19, 1926, Serial No. 149,449, and in SwedenJanuary 18, 1924.

This invention refers to improvements in radiator sections of sheetmetal, respectively radiators made of such sections, which sections areproduced of plates oined along the edges, and the invention speciallyhas in view to make the heating surface of the se'ctions largerbymaintenance of the breadth and height of the section and to attainthis effect in such a way that the necessary strength of the section maybe secured.

The invention is shown in the accompany ing drawing. Fig. l is a side-view and Fig. 2 a cross section of a radiator section, formed accordingto this invention. Fig. 3 shows a modification. f

The circulation channels in the usual radiator sections mostly areformed by a few, three or four passage-forming projections, in the plateand in consequence get a small height in proportion to the breadth. Thisfact leads to the result that the sections have a comparatively smallheating surface.

According to this invention the radiator section is formed oftwocorrugated sheet metal plates, each Ihaving a plurality of groups ofpassage-forming projections 2 and grooves 4L wider than the groovesbetween the projections of the groups. The projections 2 areVsemi-hexagonal and form hexagonal. passages and the grooves 4L havefiatV bot` I claim as new and desire to secure by Letters Patent is -Aradiator section, comprising two corru` gated sheet metal plates, eachplate having a plurality of groups of passage-formingv projections and`grooves wider than the grooves between the projections of the groups ofprojections and separating and spacing the said groups, each groupconsisting of a plurality of projections of semihexagonal sha-pe andeach groove having a flat bottom and diverging sides, the plates beingsecured together at their edges and having the bottoms of the groovesseparating the groups of projections welded together forming betweensaid plates a plurality of groups of hexagonal passages.

In witness whereof, I have' signed my name.

l GUN NAR RICHARD TELLANDER.

hereunto

